VapourSynth

Considering that the videos are among the few media utensils that just blunt your imagination and give it to you directly, it does not come as a surprise that videos are the preferred means of communication for so many websites and blogs.
VapourSynth is a Python-based utility that enables you to create and manipulate videos using commands. While you might be tempted to think this is yet another Python module, you should know that the utility includes a core library as well.
Then again, before you can manipulate it and load all the plugins you require for your project, you have to retrieve the Core object using the standard command. While it may seem tedious, this step is necessary so you can avoid naming conflicts later on.
You will be happy to learn that the utility comes with an impressive bundle of applications, scripts and plugins to simplify the creation and processing of videos. As you would expect, the tool comes with an editor app that enables you to modify the code syntax and that includes a quick preview function.
As far as the plugins are concerned, the program provides you with several options for different manipulation functions. Therefore, you can add and render subtitles, alter the source and output, deinterlace, resize, convert, denoise, apply derainbowing filters, correct scene changes and access analytics as well as statics of the video you are processing.
It is necessary to mention that the aforementioned are an example of categories of plugins that are embedded by default and that the tool includes a plethora of basic and advanced functions that you could expect in an app in this category.
All in all, if you are looking for a comprehensive application that enables you to control every little detail in your video, then perhaps VapourSynth might prove useful. You can download both installer and portable editions from this page.

System requirements